When John Bosley takes Elena from the bomb scene, she is dragged from the rubble in her green dress. When they arrive at the party, she is still wearing that dress, but it is spotless.
When Fleming walks through the market in Istanbul a man with beard walks right behind him. First he tries to pass Fleming. In the next shot he is behind Fleming again and finally when Jane makes Fleming fall the man with beard is gone.
When Peter talks with Elena in his office, the dirt on Peter's shoe sole is different between shots.
In the first chase scene where the assassin is following with a machine gun, Bosley jerks the car to the right where there are pedestrians and a bicyclist next to a hedge, but somehow they all disappear as the scene progresses.
When Jane takes a bite out of the sandwich of the guy in the lab, a small piece was initially missing from the sandwich, while seconds later the bitten part becomes much larger.
The kids are playing the 'Final Fantasy' video game with 2 controllers but it's a one player game.
Given the whirling turbine blade, the structure of a helicopter would make it impossible for anybody who falls off a building to drop down past the rotor upon its landing gear, and then get flown away standing victoriously as in the early scene with Sabina. She'd have been sliced into little bits.
When Sabina crashes into Hodak by sliding her motorcycle after the car went into the river he only passes out. A normal person would have had both legs broken if a motorcycle came sliding and hit you like this.
After Edgar's car sinks, Jane dives and struggles with the door in order to save Elena. However, since the rear window was totally broken during the car chase, Elena could simply swim through it.
Characters keep repeating that Calisto is the perfect murder weapon, because the death seems natural. But Calisto explodes itself when used as a weapon, so a proof is visible.
Elena says that her colleague Julio is "in hospital", which is an English expression. As an American, she would say "in the hospital".